I don’t know that the human always has a way to release the pressure though. When my mare is in a low-threshold state, nearly ANYthing will set her off. Birds. Sand hitting the wall. Wind crackling the barn. Shadows. A car driving down the road. Anything.
I think the human responsibility is to recognize the lower threshold, and do several things.
- Prepare the horse for stressful situations by introducing them slowly. That means not expecting the horse who was never ridden outside the arena to go for a hack all the way to the back of the property first time. Some horses might be ok! Some horses will not.
- Train the horse how to deal with stress without blowing their lid. That means stressing them, and not relieving the pressure until they demonstrate some ability to self soothe. Not ever taking a horse to a stressful mental area sounds great, but it’s unlikely much training will get done if we never push at all.
- Work with the horse in higher stress situations to tune back into the person.
There are cases out on the trail, or in the arena if the horse is reacting to generally a non-stimulus (the bird, for example), that the human can’t release the pressure. We’ve got to have taught the horse how to deal with their emotions without saying “every man for himself” and leaving us in the dirt.
There are times I legitimately do not know what is setting off my mare. That’s hard to understand and deal with, other than making the ride a micro-managey one. I often wonder if that’s actually productive though, because in the end I would like for her to see things she’s scared of (whatever they may be) and correctly perceive them as a non-threat. I feel like keeping a horse’s mind busy defeats that purpose a little, because they’re not given time to perceive it.
That said, I have no interest in getting spun off should she make a bad choice, either.